The use of low temperature spectra (1) is likely to become an increasingly important analytical tool. Infrared bands are sharpened considerably and frequently split at liquid-nitrogen temperatures. Luminescent intensities are enhanced, and phosphorescence is frequently measureable only in rigid media at low temperatures. This communication describes a versatile spectral attachment for making low temperature absorption measurements routinely in the infrared, visible, and ultraviolet regions, as well as luminescence measurements in the visible and ultraviolet regions.
H. H. Richtol and F. H. Klappmeier, "A Versatile Low Temperature Spectral Attachment," Appl. Spectrosc. 18, 113-114 (1964)
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